#include<stdio.h>
void covert(int* x,int* y){
	int temp;
	temp=*x;
	*x=*y;
	*y=temp;
	
	return 0;
}
int main()
{
	int a,b;
	scanf("%d%d",&a,&b);
	printf("a=%d    b=%d",a,b);
	covert(&a,&b);
	printf("\na=%d    b=%d",a,b);
}